AC Not Cooling? We Find Out Why.

What AC Repair Covers

When an air conditioner stops cooling in the middle of a Maryland July, the temptation is to start swapping parts and hope something sticks. That's how people end up paying for a capacitor, then a contactor, then a whole condenser, and still sitting in a warm house. Property Renovators Home Services works the other direction. We find out what failed, we tell you what it will take to fix it, and then we fix it.

Most of what stops a residential system is small. A run capacitor that has lost its rating, a contactor with burnt points, a clogged condensate line tripping the float switch, a blower wheel packed with dust, a low charge from a leak that needs finding rather than topping off. Those are repairs, not replacements. We've been working on homes across this county for 10 years, with 20 years of trade experience behind the standard, and a system in decent condition usually deserves a repair.

What This Covers

• Full diagnostic on the outdoor condenser and the indoor air handler or coil
• Electrical fault finding: capacitors, contactors, relays, transformers, control boards, wiring
• Subcooling checked against the nameplate and superheat against the manufacturer's charging chart, not a rule of thumb
• Leak searching when the charge is low, so the refrigerant isn't simply replaced every season
• Condensate drain clearing, float switch testing, and trap correction
• Blower motor, blower wheel, and airflow problems, including a filter that has collapsed into the return
• Frozen evaporator coil diagnosis, which is a symptom of something else rather than the fault itself
• Thermostat wiring and control faults that look like an equipment failure but aren't
• A written explanation of what failed, what we did, and what we saw that you should know about

Signs Your AC Needs a Look

• The unit runs constantly but the house never reaches the setting
• Air from the vents is moving but isn't cold
• The outdoor unit hums and won't start, or starts and shuts down within a minute
• Ice on the refrigerant line or on the indoor coil
• Water around the indoor unit or a ceiling stain under an attic air handler
• A breaker that trips whenever the system calls for cooling
• A burning or hot electrical smell when the system starts

How We Work an AC Call

We listen to what the system is actually doing

Before anyone opens a panel we ask what changed and when. A unit that stopped overnight and a unit that has been weakening for three weeks are two different problems, and the history narrows it down.

We take readings before we take parts off

Electrical readings, pressures, temperature split across the coil, static pressure where airflow is suspect. The readings tell us the fault. Guessing is what makes a repair expensive.

We tell you what we found and what it takes

You hear the actual fault in plain language, what the repair involves, and whether anything else is close to failing. You get a written quote before any work begins, and nothing gets done until you say go.

We repair it and we verify it

After the repair we run the system and confirm it's performing, not just running. If we cannot get it right, we say so rather than leaving you to find out in a week.

Frequently Asked Questions

AC Repair Across Montgomery County

We're based in Gaithersburg and cover the whole county. The heating and cooling side runs every day of the week, 8am to 7pm, Saturday included.

• Gaithersburg
• Rockville
• Bethesda
• Silver Spring
• Germantown
• Potomac
• Olney
• Kensington
• Wheaton
• Damascus
• Clarksburg
• Chevy Chase
• Takoma Park
• Aspen Hill
• Montgomery Village
• Poolesville